Vehicle-tire.



J. w. GARHART.

VEHICLE TIRE.

APPLICATION FILED JULY 1, 1908.

959,457., Patented May 31, 1910.

' v INVENTOI? John W farizarfi ATTORNEYS JOHN WESLEY. CAR-HART, OF'AUS'IIN, TEXAS.

VEHICLE-TIRE.

esaasa.

' Specification of Letters Patent.

Patented May 31, 1910.

Application filed July 1, 1908. Serial No. 441,270.

To all whom it may concern;-

Be it'known that I, JOHN W. CARHART, a citizen of'the United States, and a resident of Austin, in the county of Travis-and State of Texas, have invented new and useful Improvements in Vehicle-Tires, of which the following is a full, clear, and exact description. (a

The novel features of my invention are hereinafter fully described, and defined in the appended claim.

Reference is to be had to the accompany- I ing drawings forming a part of this specification, in which similar characters of reference indicate corresponding .parts in all,

the views.

Figure 1 is a side view of the improved I tire and of a wheel rim whereon the tire is mounted; Fig. 2 is an enlarged sectional side view of a ortion of a wheel rim, and of the improved tire mounted thereon; Fig. 3 is a section on the line 3 3 of Fi The laminae constituting the bod tire, are preferably formed of fiber board that is composed of a specially treated composition of matter, as is hereinafter fully described and claimed.

In manufacturing the tire, fiat continuous rings 5 are cut from the specially-prepared fiber board, of such dimensions as will produce tires of a desired diameter, and said rings are assembled by arrangin them side by side, until a proper width for the tire is afforded. The several layers or flat rings faces of the rings. -Wooden dowel pins a are inserted transversely through the laminae in alined perforations formed therein at suitable intervals, and then the connected rings are subjected to sufiicient lateral pressure for their consolidation into a practically solid tire.

The tire as constructed is placed in a lathe and turned to give it proper form and proportions; then it is subjected to an oil bath in an oven that is heated to a comparatively low temperature that will be subjected to change depending on the mater al composing the fiber board and bath applied thereto. The tires ma also be rendered waterproof by introduclng them within an airtight receptacle, then producing a vacuum therein by exhausting the air therefrom,

2. i y of the after which a pore filler, that may be creo- 'sote, oil,liquefied gums or wax, is introduced and caused to permeate the opened pores of the material, by the introduction of air pressure created by pumping air into vthe receptacle. The tires thus treated are rendefiiad. perfectly waterproof and very dura e.

The peri heral surface of the wheel rim 6, is providbd at spaced intervals with integral transverse ribs 6, and the diameter of the said wheel rim is slightly greater than the interior diameter of the tire, and the said tire is placed on the rim by pressing it on from one side, whereby when the 'tire is in place the ribs b are embedded therein, the said ribs serving to prevent creeping movement of the tire on the rim.

The tire constructed. as hereinbefore described, may be used without protection, but it is preferred to providean exterior elastic or semi-elastic covering therefor which forms the tread of the tire.

As shown in Fig. 3, a plain strip of facing 7 may be nailed on to the fiber board filler directly through the face of the tread with nails 6 sufiiciently close to hold the facing solidly to the body of the tire.

Clamping rings or ring plates 8 of metal of the tire, and each-ring is provided with two series of perforations, the perforations in one series being staggered with respect to the perforations of the other series.

Two rows of transverse perforations are formed in the tire body, that will respectively register with the perforations in the clamping rings 8 when the said rings are arranged on the opposite sides of the tire, and

the rings are secured in place thereon by bolts On which are inserted in and through the spaced perforations formed in the rings and the tire body. provided with another annular series of spaced erforations, through which extend dowel pins a, and the ends of the plus abut against the inner faces of the ring plates 8, when the said plates are in place, thus retaining the dowel pins in place, and preventing their dislodgment.

It will. be notedthat the envelop '2' may be readily removed and replaced by a new one when worn out, and thus greatlyincrease the durability service of the tire bod p While other material may be employed The tire body is also and time of eii'ectiv g made from Mexican cactus fiber, in sheets or boards, waterproofed in vacuum by the use of a filler that may be oils of a suitable character, tar, gums, wax, creosote, or other liquefied substance havin watereresistin properties, which will har en when expose to the air, and which is applied b the method or process hereinbefore spec' ed.

Having thus described my invention, I claim as new and desire to secure by Letters Patent:

A tire comprising a series of laminae arranged side by side and provided with transverse registering openings for the reception of dowel 1pins passing through the openings, a, ring p ate arranged on each side of t e tire and against whose inward face the adjacent ends of the dowel pins abut, bolts traversing the ring plates for securingthem in place, and an elastic envelop on the outer face of the tire and lapped on the side thereof, the edges of the envelop abutting the edges of the ring plates, and nails driven through the envelop into the laminated body of the tire.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JOHN WESLEY CARHART.

Witnesses:

WM. JAMES ROSENBERG, J r., J. D. SIMMS. 

